// For flags

CVE-2020-3440

Cisco Webex Meetings Desktop App for Windows Arbitrary File Overwrite Vulnerability

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in Cisco Webex Meetings Desktop App for Windows could allow an unauthenticated, remote attacker to overwrite arbitrary files on an end-user system. The vulnerability is due to improper validation of URL parameters that are sent from a website to the affected application. An attacker could exploit this vulnerability by persuading a user to follow a URL to a website that is designed to submit crafted input to the affected application. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system, possibly corrupting or deleting critical system files.

Una vulnerabilidad en Cisco Webex Meetings Desktop App para Windows podría permitir a un atacante remoto no autenticado sobrescribir archivos arbitrarios en un sistema de usuario final. La vulnerabilidad es debido a una comprobación inapropiada de los parámetros de URL que se envían desde un sitio web hacia la aplicación afectada. Un atacante podría explotar esta vulnerabilidad al persuadir a un usuario de que siga una URL en un sitio web que está diseñado para ingresar una entrada diseñada a la aplicación afectada. Una explotación con éxito podría permitir a un atacante sobrescribir archivos arbitrarios en el sistema afectado, posiblemente corrompiendo o borrando archivos críticos del sistema

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-08-26 CVE Published
  • 2023-05-12 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Webex Meetings
Search vendor "Cisco" for product "Webex Meetings"
 < 40.8
Search vendor "Cisco" for product "Webex Meetings" and version " < 40.8"
windows
Affected